Glass-lined insulated milk-can.



L. R. STEEL,

GLASS LINED INSULATED MILK UAN,

APPLICATION IILED'JULY 20, 1910.

a Patented. Aug. 15, 1911.

' 4 j jzyfl 56 Q Q ja awaraji 559950? ful Improvements Milli-Cans,

incense.

posite ;s'rnnr LEONARD R. STEEL, F CLEVELANH, OHIO.

GLASS-LINED INSULATED MILK-CAN.

Specification of Letters Patent. Application filed July 20, 1910. Serial No.

Patented Aug. 15, 1911. mass.

To all-whom it may concern:

.P-e it known that I, LEONARD R. STEEL, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented new andusein Glass-Lined Insulated of which the following is a spetification.

This invention relates to improvements in vacuum milk cans and has for its object the provision of a deviceof that kind including an outer and inner casing secured together at one end and having the space between their side walls and bottoms void of air and provided with reinforcing element.

Another object is the provision of a vacuum .milk can comprising outer and inner casings each of which is provided witlra hollow bottom.

With these and other objects in view, which will more fully hereinafter appear, the present invention consists in certain novel details of construction and arrange ment of parts, hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out in the appended claims; it being understood that various changes in the form, proportion, size, and minor details of the device may be made, Within the scope of the appended claims, without departing from the spirit or sacrificing any of the advantages ofthe invention.

In the accompanying drawings, forming part of the specification ;'Figure 1 is a side elevation of the device. Fig. 2 is a vertical sectional view of the same.

Similar numerals of reference are employcd to designate corresponding parts throughout.

' The outer casing is designated by the-letter A, and the inner casing by the letter B.

The outerc-asingis surrounded by a crate which comprises a lower circular member 5 and an upper circular member 6, these members embracing the outer casing adjacent to the upper and lower ends of latter and connected and held in spaced relation by a plurality of slats 7, the said' t 'l'ats having hooked ends which extend through slots formed in the members 5 and 6. The upper member 6 is provided at diametrically op points witha pair-of plates, one of which is shown in Fig. 1 and designated by the numeral8l These lates are secured by rivets to the outer surtiice, of the member 6' the bottom is a and aremedially provided with outwardly bulged portions 9. The handles are each formed of a single piece of stout steel wire or its equivalent bent into substantially a U-shape, the limbs of which are designated by the numerals 10 and 11. The free end portions of the limbs 10 and 11 are bent at right angles and inserted into the opposite ends of the bulged portion 9. With this construction it will be manifest that the handles are free to swing in a vertical plane when the crate is in an upright position, as shown in Fig. 1. The inner casing com prisesa bottom formed in two sections designated by the numerals 12a11d, 13, each of which is provided with a peripheral flange 14 arranged perpendicular to one surface of the bottom. The upper of these bottoms is considerably less in diameter than the lower bottom and is arranged within the lower end of the inner casing B, with the flange 14 thereof depending, the lower edge of said flange being co-incident with the lower edge of the side wall 15 of the inner casing, or substantially so. The lower. SGCtlvll 13 receives the lower end portionof the inner casing B, the flange 14 thereof bearing on the outer surface inner casing. Arranged on the inner surface of the flange 1d of the upper section of the bottom is a metallic ring 16, and encircling the flange 13 of the lower section of ring 17. The rings IG-and 17 have aline with similar openings formed in the side wall 15 and flange 14-, these alining openings receiving screws 18. Secured to the upper end of the side iiiner casing is a dome-shaped head 19. A band 20 embraces the head 19 and side Wall 15 at their juncture, the said band being secured by means of rivets 21 passing through the band and through the head 19 and side wall 15 and is further secured by means of solder to insure a tight joint. The dome-shaped head 19 is provided with a central 'openin and *surrounding this opening is ashoul dered neck 22, the upper portion of which is exteriorly screwthreaded. v

The outer casing formed of two sections designated by the numerals 23 and 24:. The sections'23 and 24 are peripherally provided withcircular flanges and 26,

he section transverse threaded openings whicharranged per endicular, to one surface ofthe-bettom.

of the side wall 15 of the d wall 15 of the A comprises a bottom which the can may rest. The rings 28 are provided with upper end 22-3 is received by the lower end portion of the. side wall 27 of the outer casing A and when positioned the flange will extend downwardly, the lower edge of said flange, extending to a point in aliiiement with the lower edge of the side all, or substantially so. The lower section 26 of the bottom of the outer casing receives the lower end por tion of the said outer casinf", the tlange 26 bearing on the outer surface of the side wall 27 of the outer casing A i-ranged on the inner surface of the flange ot the upper section of the bottom is a ring 27, and arranged on the outer surface of the flange 26 of the lower section is a similar ring 28-, the loweredgo of the said ring 28 extending below the lower edge of the outer section and serving to hold the lower section of the bottom of the outer casing in spaced relation to the ground or other support upon 27 and alining threaded openings to aline with similar openings formed in the flanges 25 and 26 and also'in the lower end portion of the side wall 27, these openings receiving screws 28 which serve to secure the bottom sections to the outer casing 1.1, the bottom being further secured and sealed by means of solder. The sections 23 and 21 of the bottom of the outer casing a are provided with alining openings which receive nipples 30, said nipples serving to establish communication with the space between the bottoms of the inne and outer casings, and threaded into these'nipples are plugs 31 which serve to prevent the entrance of air into the space between the outer and inner casings after a vacuum has been created therein.

Secured to the upper end of the side wall 27 of the outer casing a is a dome-shaped head 32, and u'rounding the head 32 and side wall 27 at their juncture is a band 13 said band being secured to the head and side wall by means of rivets 3 1: and solder. The dome-shaped head 32 is centrally provided with an opening, the said opening beingsurrmlnded by a collar 2-35, the collar 35 being of a diameter to snugly receive the lower portion of the slmuldered collar ot' the inner casing. Rising from the outer surface of the collar 35' is a neck 36, the. of which terminates in a plane It will be understood that the and neck .22 is mouth 37. joint between the collar 35 air-tight, to permit the air to be 'l'rom the space between the side dome-shaped heads of the outer casings.

cap or cover for the inner casing is designated by the numeral 38, said cap or cover being provided with a depending circular flange 39 having internal screw-threads to engage with tllt scrcw-tlireaded upper end portion of the shouldered neck Arwalls and cork, asbestos or other of the flared head -'t5 is a cooperates with partment. -',\rrangetll within this compart a disk =l7 ol cork, asbestos, or other exhaustet't and inner ranged in the space between the bottoms of the inne and outer casings is a disk 40 prefer al lly formed of cork, asbestos or'other nonheat-conducting substance, said disk being provided with a plurality of perforations l1. Arranged in the space between the outer and inner casings and also between the dome-shaped heads of the said casin s is' a cylindrical-shaped body 42 preferaly of non-heat-conducting' substance. the said body being provided with a plurality of'perforations43. By virtue ol the perfo'ations 4:1 and 43, it will be evident that the air may be more'readily exhausted from the space between the bottom, side wall and dome-sha ed heads of the casing. It will be further 0% riding the cork or asbestos bodyfthat the weight of the receptacle may be reduced to a minimum, since it is manifest if the space between the outer and empty the walls of these casings would, of a necessity, have to be formed of sheets of relatively thick metal, in order to withstand the atmospheric pressure. Therefore the provision of the cork or asbestos filling while not adding materially to the weight of the structure will prevent the walls. of the :asings from bulging inwardly when the said vans are formed of comparatively thin i'i'iaterial. This reduction in the weight of the receptacle will be appreciated by shippers, since express charges which are governed by weight, will be considerably reduced.

The cover for the outer casing is shown to include a circular body portion desig nated by the numeral 44 the said body port'ion being of a size to snugly tit within the neck lit}, and bear on the shouldered collar 22$ itising from the upper surface of the body H is a flared head 45 ot a size to snugly tit within the tlared mouth 37. Arranged between the uppcand lower ends plate 40, which the body 41- to form a comment is saitable non-heat-comlucting substance, and it will be; evident when a vacuum created in the dompm'tment and the cover positioned as shown in Figs. 1 and 2 that the contents of the inner casing will be prevented from rising \or falling to the temperature of the atmosphere.

i From the 't'oregt'iing, it is evident that I have provided a. device which is comparatively simple in structure and inexpensive in manufacture, embodying few parts and these so arranged that the danger of derangement will be reduced to a minimum.

I claim A can comprising an inner casing having a dome-shaped upper end provided with a central opening, a shouldered neck surroundserved by pro lltt ing; said opening having its upper end por--- -tion screwthreaded, an outer casing sur rounding the inner casing, said outer casing having a dome-shaped upper end providd with a central opening, a collar surrounding sa-id opening and secured to the lower end portion of the shouldered neck of the inner casing, a neck rising from the 001- lar of the outer casing and terminating in a 10 flared mouth, a cover having a screw-threadof the outer casing.

In testimony whereof I afiix my signature 15 ed portion to engage the screw-threads of the neck of the inner casing, and a cover insertible into the neck and flared portion 

